vaapi_encode: Write sequence header as extradata
[libav.git] / libavcodec / vaapi_encode.c
1 /*
2 * This file is part of Libav.
3 *
4 * Libav is free software; you can redistribute it and/or
5 * modify it under the terms of the GNU Lesser General Public
6 * License as published by the Free Software Foundation; either
7 * version 2.1 of the License, or (at your option) any later version.
8 *
9 * Libav is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12 * Lesser General Public License for more details.
13 *
14 * You should have received a copy of the GNU Lesser General Public
15 * License along with Libav; if not, write to the Free Software
16 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
17 */
18
19 #include <inttypes.h>
20 #include <string.h>
21
22 #include "libavutil/avassert.h"
23 #include "libavutil/common.h"
24 #include "libavutil/log.h"
25 #include "libavutil/pixdesc.h"
26
27 #include "vaapi_encode.h"
28 #include "avcodec.h"
29
30 static const char *picture_type_name[] = { "IDR", "I", "P", "B" };
31
32 static int vaapi_encode_make_packed_header(AVCodecContext *avctx,
33 VAAPIEncodePicture *pic,
34 int type, char *data, size_t bit_len)
35 {
36 VAAPIEncodeContext *ctx = avctx->priv_data;
37 VAStatus vas;
38 VABufferID param_buffer, data_buffer;
39 VAEncPackedHeaderParameterBuffer params = {
40 .type = type,
41 .bit_length = bit_len,
42 .has_emulation_bytes = 1,
43 };
44
45 av_assert0(pic->nb_param_buffers + 2 <= MAX_PARAM_BUFFERS);
46
47 vas = vaCreateBuffer(ctx->hwctx->display, ctx->va_context,
48 VAEncPackedHeaderParameterBufferType,
49 sizeof(params), 1, &params, &param_buffer);
50 if (vas != VA_STATUS_SUCCESS) {
51 av_log(avctx, AV_LOG_ERROR, "Failed to create parameter buffer "
52 "for packed header (type %d): %d (%s).\n",
53 type, vas, vaErrorStr(vas));
54 return AVERROR(EIO);
55 }
56 pic->param_buffers[pic->nb_param_buffers++] = param_buffer;
57
58 vas = vaCreateBuffer(ctx->hwctx->display, ctx->va_context,
59 VAEncPackedHeaderDataBufferType,
60 (bit_len + 7) / 8, 1, data, &data_buffer);
61 if (vas != VA_STATUS_SUCCESS) {
62 av_log(avctx, AV_LOG_ERROR, "Failed to create data buffer "
63 "for packed header (type %d): %d (%s).\n",
64 type, vas, vaErrorStr(vas));
65 return AVERROR(EIO);
66 }
67 pic->param_buffers[pic->nb_param_buffers++] = data_buffer;
68
69 av_log(avctx, AV_LOG_DEBUG, "Packed header buffer (%d) is %#x/%#x "
70 "(%zu bits).\n", type, param_buffer, data_buffer, bit_len);
71 return 0;
72 }
73
74 static int vaapi_encode_make_param_buffer(AVCodecContext *avctx,
75 VAAPIEncodePicture *pic,
76 int type, char *data, size_t len)
77 {
78 VAAPIEncodeContext *ctx = avctx->priv_data;
79 VAStatus vas;
80 VABufferID buffer;
81
82 av_assert0(pic->nb_param_buffers + 1 <= MAX_PARAM_BUFFERS);
83
84 vas = vaCreateBuffer(ctx->hwctx->display, ctx->va_context,
85 type, len, 1, data, &buffer);
86 if (vas != VA_STATUS_SUCCESS) {
87 av_log(avctx, AV_LOG_ERROR, "Failed to create parameter buffer "
88 "(type %d): %d (%s).\n", type, vas, vaErrorStr(vas));
89 return AVERROR(EIO);
90 }
91 pic->param_buffers[pic->nb_param_buffers++] = buffer;
92
93 av_log(avctx, AV_LOG_DEBUG, "Param buffer (%d) is %#x.\n",
94 type, buffer);
95 return 0;
96 }
97
98 static int vaapi_encode_wait(AVCodecContext *avctx,
99 VAAPIEncodePicture *pic)
100 {
101 VAAPIEncodeContext *ctx = avctx->priv_data;
102 VAStatus vas;
103
104 av_assert0(pic->encode_issued);
105
106 if (pic->encode_complete) {
107 // Already waited for this picture.
108 return 0;
109 }
110
111 av_log(avctx, AV_LOG_DEBUG, "Sync to pic %"PRId64"/%"PRId64" "
112 "(input surface %#x).\n", pic->display_order,
113 pic->encode_order, pic->input_surface);
114
115 vas = vaSyncSurface(ctx->hwctx->display, pic->input_surface);
116 if (vas != VA_STATUS_SUCCESS) {
117 av_log(avctx, AV_LOG_ERROR, "Failed to sync to picture completion: "
118 "%d (%s).\n", vas, vaErrorStr(vas));
119 return AVERROR(EIO);
120 }
121
122 // Input is definitely finished with now.
123 av_frame_free(&pic->input_image);
124
125 pic->encode_complete = 1;
126 return 0;
127 }
128
129 static int vaapi_encode_issue(AVCodecContext *avctx,
130 VAAPIEncodePicture *pic)
131 {
132 VAAPIEncodeContext *ctx = avctx->priv_data;
133 VAAPIEncodeSlice *slice;
134 VAStatus vas;
135 int err, i;
136 char data[MAX_PARAM_BUFFER_SIZE];
137 size_t bit_len;
138
139 av_log(avctx, AV_LOG_DEBUG, "Issuing encode for pic %"PRId64"/%"PRId64" "
140 "as type %s.\n", pic->display_order, pic->encode_order,
141 picture_type_name[pic->type]);
142 if (pic->nb_refs == 0) {
143 av_log(avctx, AV_LOG_DEBUG, "No reference pictures.\n");
144 } else {
145 av_log(avctx, AV_LOG_DEBUG, "Refers to:");
146 for (i = 0; i < pic->nb_refs; i++) {
147 av_log(avctx, AV_LOG_DEBUG, " %"PRId64"/%"PRId64,
148 pic->refs[i]->display_order, pic->refs[i]->encode_order);
149 }
150 av_log(avctx, AV_LOG_DEBUG, ".\n");
151 }
152
153 av_assert0(pic->input_available && !pic->encode_issued);
154 for (i = 0; i < pic->nb_refs; i++) {
155 av_assert0(pic->refs[i]);
156 // If we are serialised then the references must have already
157 // completed. If not, they must have been issued but need not
158 // have completed yet.
159 if (ctx->issue_mode == ISSUE_MODE_SERIALISE_EVERYTHING)
160 av_assert0(pic->refs[i]->encode_complete);
161 else
162 av_assert0(pic->refs[i]->encode_issued);
163 }
164
165 av_log(avctx, AV_LOG_DEBUG, "Input surface is %#x.\n", pic->input_surface);
166
167 pic->recon_image = av_frame_alloc();
168 if (!pic->recon_image) {
169 err = AVERROR(ENOMEM);
170 goto fail;
171 }
172
173 err = av_hwframe_get_buffer(ctx->recon_frames_ref, pic->recon_image, 0);
174 if (err < 0) {
175 err = AVERROR(ENOMEM);
176 goto fail;
177 }
178 pic->recon_surface = (VASurfaceID)(uintptr_t)pic->recon_image->data[3];
179 av_log(avctx, AV_LOG_DEBUG, "Recon surface is %#x.\n", pic->recon_surface);
180
181 pic->output_buffer_ref = av_buffer_pool_get(ctx->output_buffer_pool);
182 if (!pic->output_buffer_ref) {
183 err = AVERROR(ENOMEM);
184 goto fail;
185 }
186 pic->output_buffer = (VABufferID)(uintptr_t)pic->output_buffer_ref->data;
187 av_log(avctx, AV_LOG_DEBUG, "Output buffer is %#x.\n",
188 pic->output_buffer);
189
190 if (ctx->codec->picture_params_size > 0) {
191 pic->codec_picture_params = av_malloc(ctx->codec->picture_params_size);
192 if (!pic->codec_picture_params)
193 goto fail;
194 memcpy(pic->codec_picture_params, ctx->codec_picture_params,
195 ctx->codec->picture_params_size);
196 } else {
197 av_assert0(!ctx->codec_picture_params);
198 }
199
200 pic->nb_param_buffers = 0;
201
202 if (pic->encode_order == 0) {
203 // Global parameter buffers are set on the first picture only.
204
205 for (i = 0; i < ctx->nb_global_params; i++) {
206 err = vaapi_encode_make_param_buffer(avctx, pic,
207 VAEncMiscParameterBufferType,
208 (char*)ctx->global_params[i],
209 ctx->global_params_size[i]);
210 if (err < 0)
211 goto fail;
212 }
213 }
214
215 if (pic->type == PICTURE_TYPE_IDR && ctx->codec->init_sequence_params) {
216 err = vaapi_encode_make_param_buffer(avctx, pic,
217 VAEncSequenceParameterBufferType,
218 ctx->codec_sequence_params,
219 ctx->codec->sequence_params_size);
220 if (err < 0)
221 goto fail;
222 }
223
224 if (ctx->codec->init_picture_params) {
225 err = ctx->codec->init_picture_params(avctx, pic);
226 if (err < 0) {
227 av_log(avctx, AV_LOG_ERROR, "Failed to initialise picture "
228 "parameters: %d.\n", err);
229 goto fail;
230 }
231 err = vaapi_encode_make_param_buffer(avctx, pic,
232 VAEncPictureParameterBufferType,
233 pic->codec_picture_params,
234 ctx->codec->picture_params_size);
235 if (err < 0)
236 goto fail;
237 }
238
239 if (pic->type == PICTURE_TYPE_IDR) {
240 if (ctx->va_packed_headers & VA_ENC_PACKED_HEADER_SEQUENCE &&
241 ctx->codec->write_sequence_header) {
242 bit_len = 8 * sizeof(data);
243 err = ctx->codec->write_sequence_header(avctx, data, &bit_len);
244 if (err < 0) {
245 av_log(avctx, AV_LOG_ERROR, "Failed to write per-sequence "
246 "header: %d.\n", err);
247 goto fail;
248 }
249 err = vaapi_encode_make_packed_header(avctx, pic,
250 ctx->codec->sequence_header_type,
251 data, bit_len);
252 if (err < 0)
253 goto fail;
254 }
255 }
256
257 if (ctx->va_packed_headers & VA_ENC_PACKED_HEADER_PICTURE &&
258 ctx->codec->write_picture_header) {
259 bit_len = 8 * sizeof(data);
260 err = ctx->codec->write_picture_header(avctx, pic, data, &bit_len);
261 if (err < 0) {
262 av_log(avctx, AV_LOG_ERROR, "Failed to write per-picture "
263 "header: %d.\n", err);
264 goto fail;
265 }
266 err = vaapi_encode_make_packed_header(avctx, pic,
267 ctx->codec->picture_header_type,
268 data, bit_len);
269 if (err < 0)
270 goto fail;
271 }
272
273 if (ctx->codec->write_extra_buffer) {
274 for (i = 0;; i++) {
275 size_t len = sizeof(data);
276 int type;
277 err = ctx->codec->write_extra_buffer(avctx, pic, i, &type,
278 data, &len);
279 if (err == AVERROR_EOF)
280 break;
281 if (err < 0) {
282 av_log(avctx, AV_LOG_ERROR, "Failed to write extra "
283 "buffer %d: %d.\n", i, err);
284 goto fail;
285 }
286
287 err = vaapi_encode_make_param_buffer(avctx, pic, type,
288 data, len);
289 if (err < 0)
290 goto fail;
291 }
292 }
293
294 if (ctx->va_packed_headers & VA_ENC_PACKED_HEADER_MISC &&
295 ctx->codec->write_extra_header) {
296 for (i = 0;; i++) {
297 int type;
298 bit_len = 8 * sizeof(data);
299 err = ctx->codec->write_extra_header(avctx, pic, i, &type,
300 data, &bit_len);
301 if (err == AVERROR_EOF)
302 break;
303 if (err < 0) {
304 av_log(avctx, AV_LOG_ERROR, "Failed to write extra "
305 "header %d: %d.\n", i, err);
306 goto fail;
307 }
308
309 err = vaapi_encode_make_packed_header(avctx, pic, type,
310 data, bit_len);
311 if (err < 0)
312 goto fail;
313 }
314 }
315
316 av_assert0(pic->nb_slices <= MAX_PICTURE_SLICES);
317 for (i = 0; i < pic->nb_slices; i++) {
318 slice = av_mallocz(sizeof(*slice));
319 if (!slice) {
320 err = AVERROR(ENOMEM);
321 goto fail;
322 }
323 pic->slices[i] = slice;
324
325 if (ctx->codec->slice_params_size > 0) {
326 slice->codec_slice_params = av_mallocz(ctx->codec->slice_params_size);
327 if (!slice->codec_slice_params) {
328 err = AVERROR(ENOMEM);
329 goto fail;
330 }
331 }
332
333 if (ctx->codec->init_slice_params) {
334 err = ctx->codec->init_slice_params(avctx, pic, slice);
335 if (err < 0) {
336 av_log(avctx, AV_LOG_ERROR, "Failed to initalise slice "
337 "parameters: %d.\n", err);
338 goto fail;
339 }
340 }
341
342 if (ctx->va_packed_headers & VA_ENC_PACKED_HEADER_SLICE &&
343 ctx->codec->write_slice_header) {
344 bit_len = 8 * sizeof(data);
345 err = ctx->codec->write_slice_header(avctx, pic, slice,
346 data, &bit_len);
347 if (err < 0) {
348 av_log(avctx, AV_LOG_ERROR, "Failed to write per-slice "
349 "header: %d.\n", err);
350 goto fail;
351 }
352 err = vaapi_encode_make_packed_header(avctx, pic,
353 ctx->codec->slice_header_type,
354 data, bit_len);
355 if (err < 0)
356 goto fail;
357 }
358
359 if (ctx->codec->init_slice_params) {
360 err = vaapi_encode_make_param_buffer(avctx, pic,
361 VAEncSliceParameterBufferType,
362 slice->codec_slice_params,
363 ctx->codec->slice_params_size);
364 if (err < 0)
365 goto fail;
366 }
367 }
368
369 vas = vaBeginPicture(ctx->hwctx->display, ctx->va_context,
370 pic->input_surface);
371 if (vas != VA_STATUS_SUCCESS) {
372 av_log(avctx, AV_LOG_ERROR, "Failed to begin picture encode issue: "
373 "%d (%s).\n", vas, vaErrorStr(vas));
374 err = AVERROR(EIO);
375 goto fail_with_picture;
376 }
377
378 vas = vaRenderPicture(ctx->hwctx->display, ctx->va_context,
379 pic->param_buffers, pic->nb_param_buffers);
380 if (vas != VA_STATUS_SUCCESS) {
381 av_log(avctx, AV_LOG_ERROR, "Failed to upload encode parameters: "
382 "%d (%s).\n", vas, vaErrorStr(vas));
383 err = AVERROR(EIO);
384 goto fail_with_picture;
385 }
386
387 vas = vaEndPicture(ctx->hwctx->display, ctx->va_context);
388 if (vas != VA_STATUS_SUCCESS) {
389 av_log(avctx, AV_LOG_ERROR, "Failed to end picture encode issue: "
390 "%d (%s).\n", vas, vaErrorStr(vas));
391 err = AVERROR(EIO);
392 // vaRenderPicture() has been called here, so we should not destroy
393 // the parameter buffers unless separate destruction is required.
394 if (ctx->hwctx->driver_quirks &
395 AV_VAAPI_DRIVER_QUIRK_RENDER_PARAM_BUFFERS)
396 goto fail;
397 else
398 goto fail_at_end;
399 }
400
401 if (ctx->hwctx->driver_quirks &
402 AV_VAAPI_DRIVER_QUIRK_RENDER_PARAM_BUFFERS) {
403 for (i = 0; i < pic->nb_param_buffers; i++) {
404 vas = vaDestroyBuffer(ctx->hwctx->display,
405 pic->param_buffers[i]);
406 if (vas != VA_STATUS_SUCCESS) {
407 av_log(avctx, AV_LOG_ERROR, "Failed to destroy "
408 "param buffer %#x: %d (%s).\n",
409 pic->param_buffers[i], vas, vaErrorStr(vas));
410 // And ignore.
411 }
412 }
413 }
414
415 pic->encode_issued = 1;
416
417 if (ctx->issue_mode == ISSUE_MODE_SERIALISE_EVERYTHING)
418 return vaapi_encode_wait(avctx, pic);
419 else
420 return 0;
421
422 fail_with_picture:
423 vaEndPicture(ctx->hwctx->display, ctx->va_context);
424 fail:
425 for(i = 0; i < pic->nb_param_buffers; i++)
426 vaDestroyBuffer(ctx->hwctx->display, pic->param_buffers[i]);
427 fail_at_end:
428 av_freep(&pic->codec_picture_params);
429 av_frame_free(&pic->recon_image);
430 return err;
431 }
432
433 static int vaapi_encode_output(AVCodecContext *avctx,
434 VAAPIEncodePicture *pic, AVPacket *pkt)
435 {
436 VAAPIEncodeContext *ctx = avctx->priv_data;
437 VACodedBufferSegment *buf_list, *buf;
438 VAStatus vas;
439 int err;
440
441 err = vaapi_encode_wait(avctx, pic);
442 if (err < 0)
443 return err;
444
445 buf_list = NULL;
446 vas = vaMapBuffer(ctx->hwctx->display, pic->output_buffer,
447 (void**)&buf_list);
448 if (vas != VA_STATUS_SUCCESS) {
449 av_log(avctx, AV_LOG_ERROR, "Failed to map output buffers: "
450 "%d (%s).\n", vas, vaErrorStr(vas));
451 err = AVERROR(EIO);
452 goto fail;
453 }
454
455 for (buf = buf_list; buf; buf = buf->next) {
456 av_log(avctx, AV_LOG_DEBUG, "Output buffer: %u bytes "
457 "(status %08x).\n", buf->size, buf->status);
458
459 err = av_new_packet(pkt, buf->size);
460 if (err < 0)
461 goto fail_mapped;
462
463 memcpy(pkt->data, buf->buf, buf->size);
464 }
465
466 if (pic->type == PICTURE_TYPE_IDR)
467 pkt->flags |= AV_PKT_FLAG_KEY;
468
469 pkt->pts = pic->pts;
470
471 vas = vaUnmapBuffer(ctx->hwctx->display, pic->output_buffer);
472 if (vas != VA_STATUS_SUCCESS) {
473 av_log(avctx, AV_LOG_ERROR, "Failed to unmap output buffers: "
474 "%d (%s).\n", vas, vaErrorStr(vas));
475 err = AVERROR(EIO);
476 goto fail;
477 }
478
479 av_buffer_unref(&pic->output_buffer_ref);
480 pic->output_buffer = VA_INVALID_ID;
481
482 av_log(avctx, AV_LOG_DEBUG, "Output read for pic %"PRId64"/%"PRId64".\n",
483 pic->display_order, pic->encode_order);
484 return 0;
485
486 fail_mapped:
487 vaUnmapBuffer(ctx->hwctx->display, pic->output_buffer);
488 fail:
489 av_buffer_unref(&pic->output_buffer_ref);
490 pic->output_buffer = VA_INVALID_ID;
491 return err;
492 }
493
494 static int vaapi_encode_discard(AVCodecContext *avctx,
495 VAAPIEncodePicture *pic)
496 {
497 vaapi_encode_wait(avctx, pic);
498
499 if (pic->output_buffer_ref) {
500 av_log(avctx, AV_LOG_DEBUG, "Discard output for pic "
501 "%"PRId64"/%"PRId64".\n",
502 pic->display_order, pic->encode_order);
503
504 av_buffer_unref(&pic->output_buffer_ref);
505 pic->output_buffer = VA_INVALID_ID;
506 }
507
508 return 0;
509 }
510
511 static VAAPIEncodePicture *vaapi_encode_alloc(void)
512 {
513 VAAPIEncodePicture *pic;
514
515 pic = av_mallocz(sizeof(*pic));
516 if (!pic)
517 return NULL;
518
519 pic->input_surface = VA_INVALID_ID;
520 pic->recon_surface = VA_INVALID_ID;
521 pic->output_buffer = VA_INVALID_ID;
522
523 return pic;
524 }
525
526 static int vaapi_encode_free(AVCodecContext *avctx,
527 VAAPIEncodePicture *pic)
528 {
529 int i;
530
531 if (pic->encode_issued)
532 vaapi_encode_discard(avctx, pic);
533
534 for (i = 0; i < pic->nb_slices; i++) {
535 av_freep(&pic->slices[i]->priv_data);
536 av_freep(&pic->slices[i]->codec_slice_params);
537 av_freep(&pic->slices[i]);
538 }
539 av_freep(&pic->codec_picture_params);
540
541 av_frame_free(&pic->input_image);
542 av_frame_free(&pic->recon_image);
543
544 // Output buffer should already be destroyed.
545 av_assert0(pic->output_buffer == VA_INVALID_ID);
546
547 av_freep(&pic->priv_data);
548 av_freep(&pic->codec_picture_params);
549
550 av_free(pic);
551
552 return 0;
553 }
554
555 static int vaapi_encode_step(AVCodecContext *avctx,
556 VAAPIEncodePicture *target)
557 {
558 VAAPIEncodeContext *ctx = avctx->priv_data;
559 VAAPIEncodePicture *pic;
560 int i, err;
561
562 if (ctx->issue_mode == ISSUE_MODE_SERIALISE_EVERYTHING ||
563 ctx->issue_mode == ISSUE_MODE_MINIMISE_LATENCY) {
564 // These two modes are equivalent, except that we wait for
565 // immediate completion on each operation if serialised.
566
567 if (!target) {
568 // No target, nothing to do yet.
569 return 0;
570 }
571
572 if (target->encode_complete) {
573 // Already done.
574 return 0;
575 }
576
577 pic = target;
578 for (i = 0; i < pic->nb_refs; i++) {
579 if (!pic->refs[i]->encode_complete) {
580 err = vaapi_encode_step(avctx, pic->refs[i]);
581 if (err < 0)
582 return err;
583 }
584 }
585
586 err = vaapi_encode_issue(avctx, pic);
587 if (err < 0)
588 return err;
589
590 } else if (ctx->issue_mode == ISSUE_MODE_MAXIMISE_THROUGHPUT) {
591 int activity;
592
593 do {
594 activity = 0;
595 for (pic = ctx->pic_start; pic; pic = pic->next) {
596 if (!pic->input_available || pic->encode_issued)
597 continue;
598 for (i = 0; i < pic->nb_refs; i++) {
599 if (!pic->refs[i]->encode_issued)
600 break;
601 }
602 if (i < pic->nb_refs)
603 continue;
604 err = vaapi_encode_issue(avctx, pic);
605 if (err < 0)
606 return err;
607 activity = 1;
608 }
609 } while(activity);
610
611 if (target) {
612 av_assert0(target->encode_issued && "broken dependencies?");
613 }
614
615 } else {
616 av_assert0(0);
617 }
618
619 return 0;
620 }
621
622 static int vaapi_encode_get_next(AVCodecContext *avctx,
623 VAAPIEncodePicture **pic_out)
624 {
625 VAAPIEncodeContext *ctx = avctx->priv_data;
626 VAAPIEncodePicture *start, *end, *pic;
627 int i;
628
629 for (pic = ctx->pic_start; pic; pic = pic->next) {
630 if (pic->next)
631 av_assert0(pic->display_order + 1 == pic->next->display_order);
632 if (pic->display_order == ctx->input_order) {
633 *pic_out = pic;
634 return 0;
635 }
636 }
637
638 if (ctx->input_order == 0) {
639 // First frame is always an IDR frame.
640 av_assert0(!ctx->pic_start && !ctx->pic_end);
641
642 pic = vaapi_encode_alloc();
643 if (!pic)
644 return AVERROR(ENOMEM);
645
646 pic->type = PICTURE_TYPE_IDR;
647 pic->display_order = 0;
648 pic->encode_order = 0;
649
650 ctx->pic_start = ctx->pic_end = pic;
651
652 *pic_out = pic;
653 return 0;
654 }
655
656 pic = vaapi_encode_alloc();
657 if (!pic)
658 return AVERROR(ENOMEM);
659
660 if (ctx->p_per_i == 0 || ctx->p_counter == ctx->p_per_i) {
661 if (ctx->i_per_idr == 0 || ctx->i_counter == ctx->i_per_idr) {
662 pic->type = PICTURE_TYPE_IDR;
663 ctx->i_counter = 0;
664 } else {
665 pic->type = PICTURE_TYPE_I;
666 ++ctx->i_counter;
667 }
668 ctx->p_counter = 0;
669 } else {
670 pic->type = PICTURE_TYPE_P;
671 pic->refs[0] = ctx->pic_end;
672 pic->nb_refs = 1;
673 ++ctx->p_counter;
674 }
675 start = end = pic;
676
677 if (pic->type != PICTURE_TYPE_IDR) {
678 // If that was not an IDR frame, add B-frames display-before and
679 // encode-after it.
680
681 for (i = 0; i < ctx->b_per_p; i++) {
682 pic = vaapi_encode_alloc();
683 if (!pic)
684 goto fail;
685
686 pic->type = PICTURE_TYPE_B;
687 pic->refs[0] = ctx->pic_end;
688 pic->refs[1] = end;
689 pic->nb_refs = 2;
690
691 pic->next = start;
692 pic->display_order = ctx->input_order + ctx->b_per_p - i - 1;
693 pic->encode_order = pic->display_order + 1;
694 start = pic;
695 }
696 }
697
698 for (i = 0, pic = start; pic; i++, pic = pic->next) {
699 pic->display_order = ctx->input_order + i;
700 if (end->type == PICTURE_TYPE_IDR)
701 pic->encode_order = ctx->input_order + i;
702 else if (pic == end)
703 pic->encode_order = ctx->input_order;
704 else
705 pic->encode_order = ctx->input_order + i + 1;
706 }
707
708 av_assert0(ctx->pic_end);
709 ctx->pic_end->next = start;
710 ctx->pic_end = end;
711
712 *pic_out = start;
713
714 av_log(avctx, AV_LOG_DEBUG, "Pictures:");
715 for (pic = ctx->pic_start; pic; pic = pic->next) {
716 av_log(avctx, AV_LOG_DEBUG, " %s (%"PRId64"/%"PRId64")",
717 picture_type_name[pic->type],
718 pic->display_order, pic->encode_order);
719 }
720 av_log(avctx, AV_LOG_DEBUG, "\n");
721
722 return 0;
723
724 fail:
725 while (start) {
726 pic = start->next;
727 vaapi_encode_free(avctx, start);
728 start = pic;
729 }
730 return AVERROR(ENOMEM);
731 }
732
733 static int vaapi_encode_mangle_end(AVCodecContext *avctx)
734 {
735 VAAPIEncodeContext *ctx = avctx->priv_data;
736 VAAPIEncodePicture *pic, *last_pic, *next;
737
738 // Find the last picture we actually have input for.
739 for (pic = ctx->pic_start; pic; pic = pic->next) {
740 if (!pic->input_available)
741 break;
742 last_pic = pic;
743 }
744
745 if (pic) {
746 av_assert0(last_pic);
747
748 if (last_pic->type == PICTURE_TYPE_B) {
749 // Some fixing up is required. Change the type of this
750 // picture to P, then modify preceding B references which
751 // point beyond it to point at it instead.
752
753 last_pic->type = PICTURE_TYPE_P;
754 last_pic->encode_order = last_pic->refs[1]->encode_order;
755
756 for (pic = ctx->pic_start; pic != last_pic; pic = pic->next) {
757 if (pic->type == PICTURE_TYPE_B &&
758 pic->refs[1] == last_pic->refs[1])
759 pic->refs[1] = last_pic;
760 }
761
762 last_pic->nb_refs = 1;
763 last_pic->refs[1] = NULL;
764 } else {
765 // We can use the current structure (no references point
766 // beyond the end), but there are unused pics to discard.
767 }
768
769 // Discard all following pics, they will never be used.
770 for (pic = last_pic->next; pic; pic = next) {
771 next = pic->next;
772 vaapi_encode_free(avctx, pic);
773 }
774
775 last_pic->next = NULL;
776 ctx->pic_end = last_pic;
777
778 } else {
779 // Input is available for all pictures, so we don't need to
780 // mangle anything.
781 }
782
783 av_log(avctx, AV_LOG_DEBUG, "Pictures at end of stream:");
784 for (pic = ctx->pic_start; pic; pic = pic->next) {
785 av_log(avctx, AV_LOG_DEBUG, " %s (%"PRId64"/%"PRId64")",
786 picture_type_name[pic->type],
787 pic->display_order, pic->encode_order);
788 }
789 av_log(avctx, AV_LOG_DEBUG, "\n");
790
791 return 0;
792 }
793
794 static int vaapi_encode_clear_old(AVCodecContext *avctx)
795 {
796 VAAPIEncodeContext *ctx = avctx->priv_data;
797 VAAPIEncodePicture *pic, *old;
798 int i;
799
800 while (ctx->pic_start != ctx->pic_end) {
801 old = ctx->pic_start;
802 if (old->encode_order > ctx->output_order)
803 break;
804
805 for (pic = old->next; pic; pic = pic->next) {
806 if (pic->encode_complete)
807 continue;
808 for (i = 0; i < pic->nb_refs; i++) {
809 if (pic->refs[i] == old) {
810 // We still need this picture because it's referred to
811 // directly by a later one, so it and all following
812 // pictures have to stay.
813 return 0;
814 }
815 }
816 }
817
818 pic = ctx->pic_start;
819 ctx->pic_start = pic->next;
820 vaapi_encode_free(avctx, pic);
821 }
822
823 return 0;
824 }
825
826 int ff_vaapi_encode2(AVCodecContext *avctx, AVPacket *pkt,
827 const AVFrame *input_image, int *got_packet)
828 {
829 VAAPIEncodeContext *ctx = avctx->priv_data;
830 VAAPIEncodePicture *pic;
831 int err;
832
833 if (input_image) {
834 av_log(avctx, AV_LOG_DEBUG, "Encode frame: %ux%u (%"PRId64").\n",
835 input_image->width, input_image->height, input_image->pts);
836
837 err = vaapi_encode_get_next(avctx, &pic);
838 if (err) {
839 av_log(avctx, AV_LOG_ERROR, "Input setup failed: %d.\n", err);
840 return err;
841 }
842
843 pic->input_image = av_frame_alloc();
844 if (!pic->input_image) {
845 err = AVERROR(ENOMEM);
846 goto fail;
847 }
848 err = av_frame_ref(pic->input_image, input_image);
849 if (err < 0)
850 goto fail;
851 pic->input_surface = (VASurfaceID)(uintptr_t)input_image->data[3];
852 pic->pts = input_image->pts;
853
854 if (ctx->input_order == 0)
855 ctx->first_pts = pic->pts;
856 if (ctx->input_order == ctx->decode_delay)
857 ctx->dts_pts_diff = pic->pts - ctx->first_pts;
858 if (ctx->output_delay > 0)
859 ctx->ts_ring[ctx->input_order % (3 * ctx->output_delay)] = pic->pts;
860
861 pic->input_available = 1;
862
863 } else {
864 if (!ctx->end_of_stream) {
865 err = vaapi_encode_mangle_end(avctx);
866 if (err < 0)
867 goto fail;
868 ctx->end_of_stream = 1;
869 }
870 }
871
872 ++ctx->input_order;
873 ++ctx->output_order;
874 av_assert0(ctx->output_order + ctx->output_delay + 1 == ctx->input_order);
875
876 for (pic = ctx->pic_start; pic; pic = pic->next)
877 if (pic->encode_order == ctx->output_order)
878 break;
879
880 // pic can be null here if we don't have a specific target in this
881 // iteration. We might still issue encodes if things can be overlapped,
882 // even though we don't intend to output anything.
883
884 err = vaapi_encode_step(avctx, pic);
885 if (err < 0) {
886 av_log(avctx, AV_LOG_ERROR, "Encode failed: %d.\n", err);
887 goto fail;
888 }
889
890 if (!pic) {
891 *got_packet = 0;
892 } else {
893 err = vaapi_encode_output(avctx, pic, pkt);
894 if (err < 0) {
895 av_log(avctx, AV_LOG_ERROR, "Output failed: %d.\n", err);
896 goto fail;
897 }
898
899 if (ctx->output_delay == 0) {
900 pkt->dts = pkt->pts;
901 } else if (ctx->output_order < ctx->decode_delay) {
902 if (ctx->ts_ring[ctx->output_order] < INT64_MIN + ctx->dts_pts_diff)
903 pkt->dts = INT64_MIN;
904 else
905 pkt->dts = ctx->ts_ring[ctx->output_order] - ctx->dts_pts_diff;
906 } else {
907 pkt->dts = ctx->ts_ring[(ctx->output_order - ctx->decode_delay) %
908 (3 * ctx->output_delay)];
909 }
910
911 *got_packet = 1;
912 }
913
914 err = vaapi_encode_clear_old(avctx);
915 if (err < 0) {
916 av_log(avctx, AV_LOG_ERROR, "List clearing failed: %d.\n", err);
917 goto fail;
918 }
919
920 return 0;
921
922 fail:
923 // Unclear what to clean up on failure. There are probably some things we
924 // could do usefully clean up here, but for now just leave them for uninit()
925 // to do instead.
926 return err;
927 }
928
929 static av_cold int vaapi_encode_config_attributes(AVCodecContext *avctx)
930 {
931 VAAPIEncodeContext *ctx = avctx->priv_data;
932 VAStatus vas;
933 int i, n, err;
934 VAProfile *profiles = NULL;
935 VAEntrypoint *entrypoints = NULL;
936 VAConfigAttrib attr[] = {
937 { VAConfigAttribRTFormat },
938 { VAConfigAttribRateControl },
939 { VAConfigAttribEncMaxRefFrames },
940 { VAConfigAttribEncPackedHeaders },
941 };
942
943 n = vaMaxNumProfiles(ctx->hwctx->display);
944 profiles = av_malloc_array(n, sizeof(VAProfile));
945 if (!profiles) {
946 err = AVERROR(ENOMEM);
947 goto fail;
948 }
949 vas = vaQueryConfigProfiles(ctx->hwctx->display, profiles, &n);
950 if (vas != VA_STATUS_SUCCESS) {
951 av_log(ctx, AV_LOG_ERROR, "Failed to query profiles: %d (%s).\n",
952 vas, vaErrorStr(vas));
953 err = AVERROR(ENOSYS);
954 goto fail;
955 }
956 for (i = 0; i < n; i++) {
957 if (profiles[i] == ctx->va_profile)
958 break;
959 }
960 if (i >= n) {
961 av_log(ctx, AV_LOG_ERROR, "Encoding profile not found (%d).\n",
962 ctx->va_profile);
963 err = AVERROR(ENOSYS);
964 goto fail;
965 }
966
967 n = vaMaxNumEntrypoints(ctx->hwctx->display);
968 entrypoints = av_malloc_array(n, sizeof(VAEntrypoint));
969 if (!entrypoints) {
970 err = AVERROR(ENOMEM);
971 goto fail;
972 }
973 vas = vaQueryConfigEntrypoints(ctx->hwctx->display, ctx->va_profile,
974 entrypoints, &n);
975 if (vas != VA_STATUS_SUCCESS) {
976 av_log(ctx, AV_LOG_ERROR, "Failed to query entrypoints for "
977 "profile %u: %d (%s).\n", ctx->va_profile,
978 vas, vaErrorStr(vas));
979 err = AVERROR(ENOSYS);
980 goto fail;
981 }
982 for (i = 0; i < n; i++) {
983 if (entrypoints[i] == ctx->va_entrypoint)
984 break;
985 }
986 if (i >= n) {
987 av_log(ctx, AV_LOG_ERROR, "Encoding entrypoint not found "
988 "(%d / %d).\n", ctx->va_profile, ctx->va_entrypoint);
989 err = AVERROR(ENOSYS);
990 goto fail;
991 }
992
993 vas = vaGetConfigAttributes(ctx->hwctx->display,
994 ctx->va_profile, ctx->va_entrypoint,
995 attr, FF_ARRAY_ELEMS(attr));
996 if (vas != VA_STATUS_SUCCESS) {
997 av_log(avctx, AV_LOG_ERROR, "Failed to fetch config "
998 "attributes: %d (%s).\n", vas, vaErrorStr(vas));
999 return AVERROR(EINVAL);
1000 }
1001
1002 for (i = 0; i < FF_ARRAY_ELEMS(attr); i++) {
1003 if (attr[i].value == VA_ATTRIB_NOT_SUPPORTED) {
1004 // Unfortunately we have to treat this as "don't know" and hope
1005 // for the best, because the Intel MJPEG encoder returns this
1006 // for all the interesting attributes.
1007 continue;
1008 }
1009 switch (attr[i].type) {
1010 case VAConfigAttribRTFormat:
1011 if (!(ctx->va_rt_format & attr[i].value)) {
1012 av_log(avctx, AV_LOG_ERROR, "Surface RT format %#x "
1013 "is not supported (mask %#x).\n",
1014 ctx->va_rt_format, attr[i].value);
1015 err = AVERROR(EINVAL);
1016 goto fail;
1017 }
1018 ctx->config_attributes[ctx->nb_config_attributes++] =
1019 (VAConfigAttrib) {
1020 .type = VAConfigAttribRTFormat,
1021 .value = ctx->va_rt_format,
1022 };
1023 break;
1024 case VAConfigAttribRateControl:
1025 if (!(ctx->va_rc_mode & attr[i].value)) {
1026 av_log(avctx, AV_LOG_ERROR, "Rate control mode %#x "
1027 "is not supported (mask: %#x).\n",
1028 ctx->va_rc_mode, attr[i].value);
1029 err = AVERROR(EINVAL);
1030 goto fail;
1031 }
1032 ctx->config_attributes[ctx->nb_config_attributes++] =
1033 (VAConfigAttrib) {
1034 .type = VAConfigAttribRateControl,
1035 .value = ctx->va_rc_mode,
1036 };
1037 break;
1038 case VAConfigAttribEncMaxRefFrames:
1039 {
1040 unsigned int ref_l0 = attr[i].value & 0xffff;
1041 unsigned int ref_l1 = (attr[i].value >> 16) & 0xffff;
1042
1043 if (avctx->gop_size > 1 && ref_l0 < 1) {
1044 av_log(avctx, AV_LOG_ERROR, "P frames are not "
1045 "supported (%#x).\n", attr[i].value);
1046 err = AVERROR(EINVAL);
1047 goto fail;
1048 }
1049 if (avctx->max_b_frames > 0 && ref_l1 < 1) {
1050 av_log(avctx, AV_LOG_ERROR, "B frames are not "
1051 "supported (%#x).\n", attr[i].value);
1052 err = AVERROR(EINVAL);
1053 goto fail;
1054 }
1055 }
1056 break;
1057 case VAConfigAttribEncPackedHeaders:
1058 if (ctx->va_packed_headers & ~attr[i].value) {
1059 // This isn't fatal, but packed headers are always
1060 // preferable because they are under our control.
1061 // When absent, the driver is generating them and some
1062 // features may not work (e.g. VUI or SEI in H.264).
1063 av_log(avctx, AV_LOG_WARNING, "Warning: some packed "
1064 "headers are not supported (want %#x, got %#x).\n",
1065 ctx->va_packed_headers, attr[i].value);
1066 ctx->va_packed_headers &= attr[i].value;
1067 }
1068 ctx->config_attributes[ctx->nb_config_attributes++] =
1069 (VAConfigAttrib) {
1070 .type = VAConfigAttribEncPackedHeaders,
1071 .value = ctx->va_packed_headers,
1072 };
1073 break;
1074 default:
1075 av_assert0(0 && "Unexpected config attribute.");
1076 }
1077 }
1078
1079 err = 0;
1080 fail:
1081 av_freep(&profiles);
1082 av_freep(&entrypoints);
1083 return err;
1084 }
1085
1086 static av_cold int vaapi_encode_init_rate_control(AVCodecContext *avctx)
1087 {
1088 VAAPIEncodeContext *ctx = avctx->priv_data;
1089 int hrd_buffer_size;
1090 int hrd_initial_buffer_fullness;
1091
1092 if (avctx->rc_buffer_size)
1093 hrd_buffer_size = avctx->rc_buffer_size;
1094 else
1095 hrd_buffer_size = avctx->bit_rate;
1096 if (avctx->rc_initial_buffer_occupancy)
1097 hrd_initial_buffer_fullness = avctx->rc_initial_buffer_occupancy;
1098 else
1099 hrd_initial_buffer_fullness = hrd_buffer_size * 3 / 4;
1100
1101 ctx->rc_params.misc.type = VAEncMiscParameterTypeRateControl;
1102 ctx->rc_params.rc = (VAEncMiscParameterRateControl) {
1103 .bits_per_second = avctx->bit_rate,
1104 .target_percentage = 66,
1105 .window_size = 1000,
1106 .initial_qp = (avctx->qmax >= 0 ? avctx->qmax : 40),
1107 .min_qp = (avctx->qmin >= 0 ? avctx->qmin : 18),
1108 .basic_unit_size = 0,
1109 };
1110 ctx->global_params[ctx->nb_global_params] =
1111 &ctx->rc_params.misc;
1112 ctx->global_params_size[ctx->nb_global_params++] =
1113 sizeof(ctx->rc_params);
1114
1115 ctx->hrd_params.misc.type = VAEncMiscParameterTypeHRD;
1116 ctx->hrd_params.hrd = (VAEncMiscParameterHRD) {
1117 .initial_buffer_fullness = hrd_initial_buffer_fullness,
1118 .buffer_size = hrd_buffer_size,
1119 };
1120 ctx->global_params[ctx->nb_global_params] =
1121 &ctx->hrd_params.misc;
1122 ctx->global_params_size[ctx->nb_global_params++] =
1123 sizeof(ctx->hrd_params);
1124
1125 return 0;
1126 }
1127
1128 static void vaapi_encode_free_output_buffer(void *opaque,
1129 uint8_t *data)
1130 {
1131 AVCodecContext *avctx = opaque;
1132 VAAPIEncodeContext *ctx = avctx->priv_data;
1133 VABufferID buffer_id;
1134
1135 buffer_id = (VABufferID)(uintptr_t)data;
1136
1137 vaDestroyBuffer(ctx->hwctx->display, buffer_id);
1138
1139 av_log(avctx, AV_LOG_DEBUG, "Freed output buffer %#x\n", buffer_id);
1140 }
1141
1142 static AVBufferRef *vaapi_encode_alloc_output_buffer(void *opaque,
1143 int size)
1144 {
1145 AVCodecContext *avctx = opaque;
1146 VAAPIEncodeContext *ctx = avctx->priv_data;
1147 VABufferID buffer_id;
1148 VAStatus vas;
1149 AVBufferRef *ref;
1150
1151 // The output buffer size is fixed, so it needs to be large enough
1152 // to hold the largest possible compressed frame. We assume here
1153 // that the uncompressed frame plus some header data is an upper
1154 // bound on that.
1155 vas = vaCreateBuffer(ctx->hwctx->display, ctx->va_context,
1156 VAEncCodedBufferType,
1157 3 * ctx->surface_width * ctx->surface_height +
1158 (1 << 16), 1, 0, &buffer_id);
1159 if (vas != VA_STATUS_SUCCESS) {
1160 av_log(avctx, AV_LOG_ERROR, "Failed to create bitstream "
1161 "output buffer: %d (%s).\n", vas, vaErrorStr(vas));
1162 return NULL;
1163 }
1164
1165 av_log(avctx, AV_LOG_DEBUG, "Allocated output buffer %#x\n", buffer_id);
1166
1167 ref = av_buffer_create((uint8_t*)(uintptr_t)buffer_id,
1168 sizeof(buffer_id),
1169 &vaapi_encode_free_output_buffer,
1170 avctx, AV_BUFFER_FLAG_READONLY);
1171 if (!ref) {
1172 vaDestroyBuffer(ctx->hwctx->display, buffer_id);
1173 return NULL;
1174 }
1175
1176 return ref;
1177 }
1178
1179 static av_cold int vaapi_encode_create_recon_frames(AVCodecContext *avctx)
1180 {
1181 VAAPIEncodeContext *ctx = avctx->priv_data;
1182 AVVAAPIHWConfig *hwconfig = NULL;
1183 AVHWFramesConstraints *constraints = NULL;
1184 enum AVPixelFormat recon_format;
1185 int err, i;
1186
1187 hwconfig = av_hwdevice_hwconfig_alloc(ctx->device_ref);
1188 if (!hwconfig) {
1189 err = AVERROR(ENOMEM);
1190 goto fail;
1191 }
1192 hwconfig->config_id = ctx->va_config;
1193
1194 constraints = av_hwdevice_get_hwframe_constraints(ctx->device_ref,
1195 hwconfig);
1196 if (!constraints) {
1197 err = AVERROR(ENOMEM);
1198 goto fail;
1199 }
1200
1201 // Probably we can use the input surface format as the surface format
1202 // of the reconstructed frames. If not, we just pick the first (only?)
1203 // format in the valid list and hope that it all works.
1204 recon_format = AV_PIX_FMT_NONE;
1205 if (constraints->valid_sw_formats) {
1206 for (i = 0; constraints->valid_sw_formats[i] != AV_PIX_FMT_NONE; i++) {
1207 if (ctx->input_frames->sw_format ==
1208 constraints->valid_sw_formats[i]) {
1209 recon_format = ctx->input_frames->sw_format;
1210 break;
1211 }
1212 }
1213 if (recon_format == AV_PIX_FMT_NONE) {
1214 // No match. Just use the first in the supported list and
1215 // hope for the best.
1216 recon_format = constraints->valid_sw_formats[0];
1217 }
1218 } else {
1219 // No idea what to use; copy input format.
1220 recon_format = ctx->input_frames->sw_format;
1221 }
1222 av_log(avctx, AV_LOG_DEBUG, "Using %s as format of "
1223 "reconstructed frames.\n", av_get_pix_fmt_name(recon_format));
1224
1225 if (ctx->surface_width < constraints->min_width ||
1226 ctx->surface_height < constraints->min_height ||
1227 ctx->surface_width > constraints->max_width ||
1228 ctx->surface_height > constraints->max_height) {
1229 av_log(avctx, AV_LOG_ERROR, "Hardware does not support encoding at "
1230 "size %dx%d (constraints: width %d-%d height %d-%d).\n",
1231 ctx->surface_width, ctx->surface_height,
1232 constraints->min_width, constraints->max_width,
1233 constraints->min_height, constraints->max_height);
1234 err = AVERROR(EINVAL);
1235 goto fail;
1236 }
1237
1238 av_freep(&hwconfig);
1239 av_hwframe_constraints_free(&constraints);
1240
1241 ctx->recon_frames_ref = av_hwframe_ctx_alloc(ctx->device_ref);
1242 if (!ctx->recon_frames_ref) {
1243 err = AVERROR(ENOMEM);
1244 goto fail;
1245 }
1246 ctx->recon_frames = (AVHWFramesContext*)ctx->recon_frames_ref->data;
1247
1248 ctx->recon_frames->format = AV_PIX_FMT_VAAPI;
1249 ctx->recon_frames->sw_format = recon_format;
1250 ctx->recon_frames->width = ctx->surface_width;
1251 ctx->recon_frames->height = ctx->surface_height;
1252 ctx->recon_frames->initial_pool_size =
1253 avctx->max_b_frames + 3;
1254
1255 err = av_hwframe_ctx_init(ctx->recon_frames_ref);
1256 if (err < 0) {
1257 av_log(avctx, AV_LOG_ERROR, "Failed to initialise reconstructed "
1258 "frame context: %d.\n", err);
1259 goto fail;
1260 }
1261
1262 err = 0;
1263 fail:
1264 av_freep(&hwconfig);
1265 av_hwframe_constraints_free(&constraints);
1266 return err;
1267 }
1268
1269 av_cold int ff_vaapi_encode_init(AVCodecContext *avctx)
1270 {
1271 VAAPIEncodeContext *ctx = avctx->priv_data;
1272 AVVAAPIFramesContext *recon_hwctx = NULL;
1273 VAStatus vas;
1274 int err;
1275
1276 if (!avctx->hw_frames_ctx) {
1277 av_log(avctx, AV_LOG_ERROR, "A hardware frames reference is "
1278 "required to associate the encoding device.\n");
1279 return AVERROR(EINVAL);
1280 }
1281
1282 ctx->codec_options = ctx->codec_options_data;
1283
1284 ctx->va_config = VA_INVALID_ID;
1285 ctx->va_context = VA_INVALID_ID;
1286
1287 ctx->priv_data = av_mallocz(ctx->codec->priv_data_size);
1288 if (!ctx->priv_data) {
1289 err = AVERROR(ENOMEM);
1290 goto fail;
1291 }
1292
1293 ctx->input_frames_ref = av_buffer_ref(avctx->hw_frames_ctx);
1294 if (!ctx->input_frames_ref) {
1295 err = AVERROR(ENOMEM);
1296 goto fail;
1297 }
1298 ctx->input_frames = (AVHWFramesContext*)ctx->input_frames_ref->data;
1299
1300 ctx->device_ref = av_buffer_ref(ctx->input_frames->device_ref);
1301 if (!ctx->device_ref) {
1302 err = AVERROR(ENOMEM);
1303 goto fail;
1304 }
1305 ctx->device = (AVHWDeviceContext*)ctx->device_ref->data;
1306 ctx->hwctx = ctx->device->hwctx;
1307
1308 err = vaapi_encode_config_attributes(avctx);
1309 if (err < 0)
1310 goto fail;
1311
1312 vas = vaCreateConfig(ctx->hwctx->display,
1313 ctx->va_profile, ctx->va_entrypoint,
1314 ctx->config_attributes, ctx->nb_config_attributes,
1315 &ctx->va_config);
1316 if (vas != VA_STATUS_SUCCESS) {
1317 av_log(avctx, AV_LOG_ERROR, "Failed to create encode pipeline "
1318 "configuration: %d (%s).\n", vas, vaErrorStr(vas));
1319 err = AVERROR(EIO);
1320 goto fail;
1321 }
1322
1323 err = vaapi_encode_create_recon_frames(avctx);
1324 if (err < 0)
1325 goto fail;
1326
1327 recon_hwctx = ctx->recon_frames->hwctx;
1328 vas = vaCreateContext(ctx->hwctx->display, ctx->va_config,
1329 ctx->surface_width, ctx->surface_height,
1330 VA_PROGRESSIVE,
1331 recon_hwctx->surface_ids,
1332 recon_hwctx->nb_surfaces,
1333 &ctx->va_context);
1334 if (vas != VA_STATUS_SUCCESS) {
1335 av_log(avctx, AV_LOG_ERROR, "Failed to create encode pipeline "
1336 "context: %d (%s).\n", vas, vaErrorStr(vas));
1337 err = AVERROR(EIO);
1338 goto fail;
1339 }
1340
1341 ctx->output_buffer_pool =
1342 av_buffer_pool_init2(sizeof(VABufferID), avctx,
1343 &vaapi_encode_alloc_output_buffer, NULL);
1344 if (!ctx->output_buffer_pool) {
1345 err = AVERROR(ENOMEM);
1346 goto fail;
1347 }
1348
1349 if (ctx->va_rc_mode & ~VA_RC_CQP) {
1350 err = vaapi_encode_init_rate_control(avctx);
1351 if (err < 0)
1352 goto fail;
1353 }
1354
1355 if (ctx->codec->configure) {
1356 err = ctx->codec->configure(avctx);
1357 if (err < 0)
1358 goto fail;
1359 }
1360
1361 ctx->input_order = 0;
1362 ctx->output_delay = avctx->max_b_frames;
1363 ctx->decode_delay = 1;
1364 ctx->output_order = - ctx->output_delay - 1;
1365
1366 // Currently we never generate I frames, only IDR.
1367 ctx->i_per_idr = 0;
1368 ctx->p_per_i = ((avctx->gop_size + avctx->max_b_frames) /
1369 (avctx->max_b_frames + 1));
1370 ctx->b_per_p = avctx->max_b_frames;
1371
1372 if (ctx->codec->sequence_params_size > 0) {
1373 ctx->codec_sequence_params =
1374 av_mallocz(ctx->codec->sequence_params_size);
1375 if (!ctx->codec_sequence_params) {
1376 err = AVERROR(ENOMEM);
1377 goto fail;
1378 }
1379 }
1380 if (ctx->codec->picture_params_size > 0) {
1381 ctx->codec_picture_params =
1382 av_mallocz(ctx->codec->picture_params_size);
1383 if (!ctx->codec_picture_params) {
1384 err = AVERROR(ENOMEM);
1385 goto fail;
1386 }
1387 }
1388
1389 if (ctx->codec->init_sequence_params) {
1390 err = ctx->codec->init_sequence_params(avctx);
1391 if (err < 0) {
1392 av_log(avctx, AV_LOG_ERROR, "Codec sequence initialisation "
1393 "failed: %d.\n", err);
1394 goto fail;
1395 }
1396 }
1397
1398 // This should be configurable somehow. (Needs testing on a machine
1399 // where it actually overlaps properly, though.)
1400 ctx->issue_mode = ISSUE_MODE_MAXIMISE_THROUGHPUT;
1401
1402 if (ctx->va_packed_headers & VA_ENC_PACKED_HEADER_SEQUENCE &&
1403 ctx->codec->write_sequence_header) {
1404 char data[MAX_PARAM_BUFFER_SIZE];
1405 size_t bit_len = 8 * sizeof(data);
1406
1407 err = ctx->codec->write_sequence_header(avctx, data, &bit_len);
1408 if (err < 0) {
1409 av_log(avctx, AV_LOG_ERROR, "Failed to write sequence header "
1410 "for extradata: %d.\n", err);
1411 goto fail;
1412 } else {
1413 avctx->extradata_size = (bit_len + 7) / 8;
1414 avctx->extradata = av_mallocz(avctx->extradata_size +
1415 AV_INPUT_BUFFER_PADDING_SIZE);
1416 if (!avctx->extradata) {
1417 err = AVERROR(ENOMEM);
1418 goto fail;
1419 }
1420 memcpy(avctx->extradata, data, avctx->extradata_size);
1421 }
1422 }
1423
1424 return 0;
1425
1426 fail:
1427 ff_vaapi_encode_close(avctx);
1428 return err;
1429 }
1430
1431 av_cold int ff_vaapi_encode_close(AVCodecContext *avctx)
1432 {
1433 VAAPIEncodeContext *ctx = avctx->priv_data;
1434 VAAPIEncodePicture *pic, *next;
1435
1436 for (pic = ctx->pic_start; pic; pic = next) {
1437 next = pic->next;
1438 vaapi_encode_free(avctx, pic);
1439 }
1440
1441 if (ctx->va_context != VA_INVALID_ID) {
1442 vaDestroyContext(ctx->hwctx->display, ctx->va_context);
1443 ctx->va_context = VA_INVALID_ID;
1444 }
1445
1446 if (ctx->va_config != VA_INVALID_ID) {
1447 vaDestroyConfig(ctx->hwctx->display, ctx->va_config);
1448 ctx->va_config = VA_INVALID_ID;
1449 }
1450
1451 av_buffer_pool_uninit(&ctx->output_buffer_pool);
1452
1453 av_freep(&ctx->codec_sequence_params);
1454 av_freep(&ctx->codec_picture_params);
1455
1456 av_buffer_unref(&ctx->recon_frames_ref);
1457 av_buffer_unref(&ctx->input_frames_ref);
1458 av_buffer_unref(&ctx->device_ref);
1459
1460 av_freep(&ctx->priv_data);
1461
1462 return 0;
1463 }